Typewriting machine



Feb. 23 1926. 1,574,323

J. WALDHEIM TYPEWRITING MACHINE Filed July 5, 1922 9 30 (3 hvemor:

Patented Feb. 23, 1926.

"rice,

JOHN WALDHEIM, OF ELIZABETH, NEW JERSEY, ASSIG-NOR TO UNDERWO OID TYPE- WRI'IER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAVJARE.

TYrEwarrrNe MACHINE.

Application filed July 3; 1922 Serial No. 572,396.

1 '0 all whom it may concern:

Be it known that I, JOHN WALDHEI'M, a citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have invented certain new and removal of the machine, and to permit of access to the machine for erasures and other purposes. mentioned have heretofore been made or sheet-metal or di e-castings, lined with felt.

or other sound-deadening material, cutrinto pieces of various shapes, and joined and held to the casing proper by various devices.

An object of the present invention is a casing having no s0unddeadening wallmembers other than the Walls which form the frame of the casing; and in which, therefore, the number of parts and fittmgs may be reduced to a minimum.

In attaining this object of the 'in'vention,

the casing is constructed of beaver-board, fiber or other self-sustaining composition, which is in itself sound-deadening. Preferably the walls of the casing are separate units, so jointed and held together as to as sure the sound-deadening characteristic of the casing. Certain features of the invention relate to clamps by which the desired union of the walls is had; and to certain holding or anchoring means for the clamps, to prevent the same from working loose in the softer material of the casing itself; also to means for holding the hinges to such softer material of the casing, while preserv' ing a smooth interior finish, to prevent fouling of the work-sheets as the latter move over and with the carriage of the machine within the casing.

Other features and advantages will here inafter appear, a

In the accempafqing drawings;

Casings of the character indicated .in dotted lines therein.

Figure 2 is a front view, partly cross-sectlonal, of the casing.

Figure 3 is a detail view, in cross-section, through one of the corners of the casing, to show the'manner in which the walls are held together;

Figure l is a detail view of one of the slot-closing cushions.

The casing is shown as made in two parts, to wit, a body-part and a cover 11, hinged together at 12. The sections 10 and 11 are of some stiff, sound-deadening material, such, for instance, .as beaver-board or fiber. The leaves 13 and 14 of the hinge extend lengthwise of-the 'joint 15 ofthecasing.

Stripsof metal 16 and 17 areset into grooves or. countersinks in the inner faces of the casing-members, and extend lengthwise of the same, to serve as anchoring means for screws 18, which pass through the same, and through the board and the leaves-0f the hinge,and which are held in place by nuts 19. By oountersinking the strips 16 and I 17 in the faces of the casing-sections and by countersinking the heads of the screws 18 111 the strips, asmooth surface is maintained on the inside of the caslngyto prevent fouling of the paper on the countersunk members. A base-piece 20, preferably prov ded with a pad 20 of" felt, is secured by pms or screws 21 to the lower edgesof the casing-body 10. Set in an opening in the forward upper portion of the cover is a win dew-pane 22, of glass or other transparent material, through which the printing being efl'ectedtupon the platen, within the casing, may be observed. The pane 22 rests ona ledge 23, forming part of the window-frame, and a binding or packing strip 24 embraces the edges thereof. Suitable clamps 25 are provided for holding the pane in its frame.

The machine 26, within the casing, is pro-.

vided with the usual front feet 27 and rear feet 28. The keyboard-extension 29v of the machine projects through a suitable o em ing 30 in the front wal 31 of the casingbody, The typewriter earriage 32 is mount lower forward edge 37 of the cover and by the upper edge 38 of the front wall 31 of the casing-body. This slot- 36 is, however, practically closed by two resilient, flexible cushions 39 and 40; the cushion 39 being secured by screws 41 passing through lips 37 on the edge 37 of the cover, and the cushion 40 by screws 42 passing through lips 38 on the edge 38 of the casing-body, the

7 screws 41 and 42 being received in metal strips 37 and 38 behind the rear lips 37 and 38 respectively. The cushions, in effect, close the slot 36, being in contact with each other except where the handles 33, 34 and protrude between the same. The yieldable, flexible character of the cushions permits movement of the handles therealong as the carriage is moved in oneor the otherdirection.

walls, and 49. In this WV'hen the 'casing-cover' is open, the typewriting machine may be inserted. 1nto the casing through the open top of the casingbody. In the form of the casing shown, the

machine is inserted with its keyboard-ex "tension tilted downward and forward. Thus tilted, the keyhoardextension is passed through the hole or opening 30 in the front wall of the casing, and is then brought forward, and themachine lowered until the feet thereof rest upon the basepiece'20, with the rear feet 28 thereof in locators 43. These locators are in the form of ears, preferably of metal, secured by screws 44 to the lower edges of the casingbody; and are provided with holes 45 to receive the rear feet. Lips 46, upturned out of the locators, define the holes 45 and provide ample lateral bearing for the feet. To allow for proper play of the keys 47, the front wall of the easing-body, above the keys, may be cut or taperedinward, as indicated at 48.

Clamps, set along thejoints formed by the casing-walls, hold the latter together. These clamps comprise blocks 49, set into thecorners, and having wings 50 projecting into grooves 51 in the inner faces of the casing-walls. Anchoring or holding strips 52, for screws 53, are counter-sunk in the outer faces of the walls, opposite the blocks 49; and the screws 53 pass through the strips 52 and through the casing are threaded into the blocks manner, the walls are not only held securely together, but the joints are held tightly closed, to maintain the sounddeadening character of the casing.

As shown in Figure 2, the casing has the usual upward and lateral outward flare, to provide space inthe upper part thereof, for movement of the carriage in letter-feed and return directions. The cover is supported upon the casing-body at the joint 15, at the rear thereof, by means of the hinges; and, at the front, the cushion 40 supports the cushion 39 of the cover. As shown in Figure 2, the cover side walls overlap the upper edges of the side walls of the casing-body.

The slot-closing cushions 39 and 40 may be readily replaced by'hew ones when they become worn. To facilitate this replacement, the cushions are held between metal strips or bars 55 riveted together so that they may be readily inserted into slots 56 and 57 formed respectively by the lips 37 and 38, The bars 55 are provided with holes to permit the screws 41 and 42 to pass freely through them.

Variations may be resorted to within the scope of the. invention, and portions of the improvements may be used without-others.

Having thus described my invention, I claim: I a

1. A casing for a typewriting machine, in two sections, each'composed of sheets of selfsustaining sound-deadening composition attached at its edges to formsound-proof joints, one of the sections being ja cover hingedto the other section at the rear of the casing, said cover-section having the lower edge of itsrear wall beveled, the other section having the upper edge of its rear wall beveled, and means, for securing the leaves of'the hinge'to the board-material of the casingsections, while maintaining a smooth interior finish, comprising strips of metal countersunk in the inner faces of the casing-sections, and-screws passing through said strips and through the easing-walls to the leaves of the hinge.

A soundleadening casing for 'a typewriting machine comprising a body-section composed of a plurality of sheets of beaverboard or other self-sustaining sound-deadening composition and from which the keyboard of 'the machine projects, a cover composed of a plurality of sheets of such material openable for the insertion or removal of the machine, and means for cl'ampingly connecting said sheets at their meeting edges, locators for the rear feet of the machine comprising metal ears having holes therein to receive the rear feet, and screws for securing the ears to the lower edges of the easing-body.

3. A sound-deadening casing for a typewriting machine comprising sections 'com posed of a plurality of sheets of beaverboard) or other self-sustaining sound-deadenposed of a plurality of sheets of such material openable for the insertion or removal of the machine, locators for the rear feet of the machine comprising metal ears having holes therein to receive the rear feet, screws for securing the ears to the lower ed es of the casing-body, and a base-piece of sound-deadenTng material secured to the lower edges of the casing-body below the lo-- caters.

4:. In a sound-deadening casing for a type writing machine, in combination, a body part comprising side walls flared outwardly at the top to accommodate the travel of the typewriter-oarriage, a front wall with an opening through which the keyboard projects, a cover openable for insertion and removal of the machine and to give access to the work, locators to receive the rear feet of the machine to position the machine in the casing, a base on which the machine and said body-part rest, and devices extending through said base and said locators to secure them to said body-part.

5. In a sound-deadening casing for a typewriting machine, in combination, a bodypart comprising side walls flared outwardly at the top to accommodate the travel of the typewritercarriage, a front wall with an opening through which the keyboard projects, a cover openable for insertion and removal of the machine and to give access to the work, locators to receive the rear feet of the machine to position the machine in the casing, devices to hold the rearward portions of said locators against the lower edges of said rear wall, a base on which the machine and said body-part rest, and devices extending through said base to secure it to said body-part.

6. In a sound-deadening casing for a typewriting machine, in combination, an open top body-portion having separate walls of self-sustaining sound-deadening composition, including a rear wall, side walls outwardly flared to accommodate the travel of the carriage, and a front wall through which the keyboard projects, all of said walls being connected to form a sound-proof joint; and a cover pivotally mounted on the body part and comprising a sheet of self-sustaiir ing sound-deadening composition forming the rear wall of the cover and curved inwardly and downwardly to form the top of the cover, and sheets of self-sustaining sound-deadei'iing composition forming the side walls of said cover, all of said sheets being so connected as to form soundproof joints.

7. In a sound-deadening casing for a typewriting machine, in combination, a bodyportion comprising a sound-deadening base on which the typewriter rests, a rear wall consisting of a sheet of'sound-deadening composition fastened to said base, side walls consisting of sheets of sound-deadening composition fiared upwardly and outwardly to accommodate the travel of thetypewritercarriage and securedat their lower edges to said base and at their rearedges to said rear wall, and a front wall consisting of a sheet of sound-deadening composition secured to the front edges of said side walls and having an opening through which the keyboard of the typewriter projects; and a cover consisting of a sheet of sound-deadening composition hinged to the top edge of said rear wall of the body-portion and curved forwardly and downwardly to form at its front edge a slot with the upper edge of the front wall of the body-portion, and side walls consisting of sheets of sounddeadening composition connected to the edges of the hinged sheet.

8. In a sound-deadening casing for a typewriting machine, in combination, a bodyportion comprising a sound-deadening base on which the typewriter rests, a rear wall consisting of a sheet of sound-deadening composition fastened to said base, side walls consisting of sheets of sound-deadening composition flared upwardly and outwardly to accommodate the travel of the typewritercarriage and secured at their lower edges to said base and forming at their rear edges miter-joints with the side edges of said rear wall, and a front wall consisting of a sheet of sound-deadening composition forming miter-joints with the front edges of said side walls and having an opening through which the keyboard of the typewriter projects; and a cover consisting of a sheet of sound-deadening composition hinged to the top edge of said rear wall of the body-portion and curved forwardly and downwardly to form at its front edge a slot with the upper edge of the front wall of the body-portion, and side walls consisting of sheets of sounddeadening composition forming miterq'oints with the edges of the hinged sheet.

9. In a sound-deadening casing for a typewriting machine, in combination, a body-portion comprising a sound-deadening base on which the typewriter rests, a rear "all consisting of a sheet of sound-deadening composition fastened to said base, side walls consisting of sheets of sound-deadening composition flared upwardly and outwardly to accommodate the travel of the typewriter-carriage and secured at their lower edges to said base and forming at their rear edges miter-joints with the side edges of said rear wall, a front wall consisting of a sheet of sound-deadening com position forming miter-joints with the front edges of said side walls and having an opening through which the keyboard of the typewriter projects, and clamps to secure said walls at said miter-j0i11ts; and a, cover contion forming miter-joints with the edges of sisting of a sheet of sound-deadening comthe hinged (sheet, and holding clamps for 10 position hinged to the top edge of said rear said miter-joints.

Wall of the bodyportioh ,z md'cur-ved for- 10. The Casi-11g substantially as described wzu'dly and downwardly to form at its front and illustrated in the accompanying drmw edge a slot With the upper edge of the front ings. wall of the body-portion, side Walls consisting of sheets of sound-deadening com'posi- JOHN WALDHEIM. 

